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Unity Engine

phase

Describes the phase of the touch.
Read time 1 minuteLast updated 6 days ago

Definition

  • Type: Property
  • Namespace: UnityEngine
  • Assembly: UnityEngine.InputLegacyModule
public TouchPhase phase { get; set; }

Remarks

The touch 
phase
refers to the action the finger has taken on the most recent frame update. Since a touch is tracked over its "lifetime" by the device, the start and end of a touch and movements in between can be reported on the frames they occur. The 
phase
property can be used as the basis of a "switch' statement or as part of a more sophisticated state handling system.

Examples

using UnityEngine;using System.Collections;public class ExampleClass : MonoBehaviour{    public Vector2 startPos;    public Vector2 direction;    public bool directionChosen;    void Update()    {        // Track a single touch as a direction control.        if (Input.touchCount > 0)        {            Touch touch = Input.GetTouch(0);            // Handle finger movements based on touch phase.            switch (touch.phase)            {                // Record initial touch position.                case TouchPhase.Began:                    startPos = touch.position;                    directionChosen = false;                    break;                // Determine direction by comparing the current touch position with the initial one.                case TouchPhase.Moved:                    direction = touch.position - startPos;                    break;                // Report that a direction has been chosen when the finger is lifted.                case TouchPhase.Ended:                    directionChosen = true;                    break;            }        }        if (directionChosen)        {            // Something that uses the chosen direction...        }    }}